Multilayer capacitor
Abstract
In an element body of a multilayer capacitor C1, a plurality of dielectric layers and a plurality of internal electrode layers extend in a first and second direction orthogonal to each other, and the plurality of dielectric layers and the plurality of internal electrode layers are alternately laminated in a third direction intersecting the first direction and second direction. The element body includes at least one end surface. At least one internal electrode layer among the plurality of internal electrode layers is exposed from the plurality of dielectric layers at at least one end surface. The external electrode terminal is provided on the at least one end surface and is connected to the at least one internal electrode layer. In the element body, a weight ratio of a metal containing Ni is from 20% to 25%, and a weight ratio of sulfur is from 3 ppm to 20 ppm.
Claims
exact text as granted — not AI-modifiedWhat is claimed is:
1 . A multilayer capacitor comprising:
an element body in which a plurality of dielectric layers and a plurality of internal electrode layers extending in a first direction and a second direction orthogonal to each other are alternately laminated in a third direction intersecting the first direction and second direction, and which includes at least one end surface in which at least one internal electrode layer among the plurality of internal electrode layers is exposed from the plurality of dielectric layers; and an external electrode terminal disposed on the at least one end surface and connected to the at least one internal electrode layer, wherein in the element body, a weight ratio of a metal containing Ni is from 20% to 25%, and a weight ratio of sulfur is from 3 ppm to 20 ppm.
2 . The multilayer capacitor according to claim 1 , wherein
when the end surface is viewed in plan view along a direction orthogonal to the end surface, a ratio of an area occupied by the plurality of internal electrode layers to an area of the end surface is from 5% to 12%.
3 . The multilayer capacitor according to claim 1 , wherein
in each of the plurality of internal electrode layers, when the end surface is viewed in plan view along a direction orthogonal to the end surface, a value obtained by dividing an area of the internal electrode layer exposed from the plurality of dielectric layers by a volume of the internal electrode layer is from 0.15 to 0.40.
4 . The multilayer capacitor according to claim 1 , wherein
the at least one end surface includes a pair of end surfaces at which internal electrode layers different from each other among the plurality of internal electrodes are exposed, the plurality of internal electrode layers include a pair of internal electrode layers adjacent to each other and exposed at end surfaces different from each other among the pair of end surfaces, each of the pair of internal electrode layers includes an overlapping portion that overlaps with the overlapping portion of the other internal electrode layer among the pair, and an extended portion connected to the overlapping portion of the same internal electrode layer, extending from the overlapping portion of the same internal electrode layer in the first direction, and exposed at the end surface, and when a width of the extended portion in the second direction is “W 1 ” and a width of the overlapping portion in the second direction is “W 2 ”, 1−(W 1 /W 2 ) is from 0.35 to 0.55.
5 . The multilayer capacitor according to claim 1 , wherein
the plurality of dielectric layers form a pair of outer layer portions located outside the plurality of internal electrode layers in the third direction and located to sandwich the plurality of internal electrode layers, and a thickness of one of the pair of outer layer portions is a length of 5% to 10% of the entire thickness of the element body in the third direction.Join the waitlist — get patent alerts
Track US2025037934A1 — get alerts on status changes and closely related new filings.
We store only your email — no account needed. See our privacy policy.